initial commit / add all books

1 files changed, 33 insertions, 0 deletions

diff --git a/2885/CH6/EX6.4/ex6_4.sce b/2885/CH6/EX6.4/ex6_4.sce
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+//Determine the Q point at two different B

+clear;

+clc;

+//soltion

+//given

+

+//At B=50

+

+B=50;            //dc beta

+Rc=2*10^3;//ohm      //resistor connected to collector

+Rb=300*10^3;//ohm      //resistor connected to base

+Vcc=9;//V            //Voltage supply across the collector resistor

+Ib=Vcc/Rb;         //Base current

+Ic=B*Ib;         //Colletor current

+Ics=Vcc/Rc;       //Colletor saturation current

+

+//Actual Ic is the smaller of the above two values

+

+Vce=Vcc-Ic*Rc;

+printf("The Q point (At B=50) is (%.0f V, %.1f mA)\n",Vce,Ic*1000);

+

+//At B=150

+

+B1=150;            //dc beta

+Ic1=B*Ib;         //Colletor current

+Ics1=Vcc/Rc;       //Colletor saturation current

+

+//Actual Ic is the smaller of the above two values i.e. Ic(sat) and since the transistor is in saturation mode therefore Vce will become 0

+

+Vce=0;

+printf("The Q point (At B=150) is (%d V, %.1f mA)\n",Vce,Ics*1000);

+

+printf("The factor at which collector current increases %.0f",Ics1/Ic);